Brake-rigging.



W. F. KIESEL, JR.

` [SRAKE RIGGINGL APPLlcATIoN FILEDV @6.29, 1914.

.Patented Febgl, 1916.

2 SHEETS-SHEET I.

mmm l:

W. F. KIESEL, Jn.

BRAKE RIGGING.

APPLICATION FILED AUG.29.1914. 1,169,968. Peteneed Fe1e1, 1916.

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0F ALTOONA, PENNSYLVANIA.

afectivo.

very limited, consequently the ordinary ar-l rangementof the brake devices is changed and the main brake levers are placed horizontally.

The primary object of my invention is to provide an vimproved braking mechanism suitable for the limited space afforded,

whereby a plurality of driving wheel clasp lbrakes used in conjunction with pony truck and trailer truck brakes, are all operated by one cylinder and with one system of brake levers.

Another object of my invention is to provide adequate means for automatically taking up the slack of the brake, due to worn shoes and wheel tires, and to provide a novel lever arrangement in connection with the slack adjuster and the brake cylinder.

The above and other objects and the novel featuresof my invention will be apparent from the, following description taken in con.

nection with the drawings, in which,

Figure 1 is a side elevation of substantially one half of an electric locomotive embodying my invention; Fig. 2 is a plan view on a larger scale illustrating the arrangement of the. brake rigging; Fig. 3 is a sideelevation of the brake rigging, parts of the frame, wheels, etc., being shown in outline.; and Fig. 4 is a horizontal sectional view showing the arrangement of the primary levers with respect to the slack adjuster.

Referring to` the drawings and particularly to Fig. 1, each half of the truck ofthe electric locomotive or engine which supports the cab. 10 consists of parallel side frame members 11 extending along the under sides of thecab or body 10, the frame members being connected at their forward and at their rear ends by draft appliances 12. The side frame members 11 comprising each half of the engine have two pairs of driving wheels 13 and 14 mounted on the axles 15 and 16,

Specication of Letters Patent.

Patented'lFeb. 1l, 1916.,

Application led August 29, 1914. Serial No. 859,221.

which are carried by the frame' members.

At the outer sides of the axles 15 and 16/ the truck frame carries the ponytruck axles 17 and 18 upon the endsl of which the pairs of` line with a center line through the draft rigging. The jack shaft 21 carries a gear wheel 22 at its opposite ends, the said gear wheels meshing with the pairs. of pinions 23 and 24 ,on the axles of the motors 25 and 26 respectively. Each of the gear wheels 22 is connected by suitable connecting rods 27 and 28 with the pairs of driver wheels 13 and 14, respectively.

The draw bar pull on the locomotive takes effect through `the center line of the draft rigging and about 34% inches above the' rail level, and l have made provision approximately at the` point 30 below the transverse center line of-the cab or body where the two engine halves abut to transfer buiing. and tension strains in line with the draw bar.

1n co-pending applications Serial Nos. 857,718, 857,719 and 857,720, au filed August 20, 1914, l have shown and described the manner of supporting the body 10 on the truck, the manner of connecting and trans` ferring weight to the pony truck wheels so that the weight on each of the latter will bey substantially one half the weight on each driver wheel, and the manner of fitting the jack shaft 21 in 'place in the side frame melni bers 11. l

Associated with the brake rigging for the eight wheels mounted on the truck frame beneath each half vof the engine'body is a brake cylinder 31 of the usual Westinghouse type. Each cylinder is equipped with a piston 32 and a piston rod 33. A tubular portion 34 extends from onel end of the cylinder and has an automatic slack adjuster 35 mounted at its outer end. On account of the size of the motors 25 and 26 the space for the brake is very limited, and because of the location of the jack shaft 21 substantially in line with the center line through the draft rigging, it is necessary to locate the brake cylinder an slack adjuster beneath the jack shaft but high enough so that the rigging attached thereto will have suicient clearance frombeing the live lever, is pivoted near itscenter at the end vofthe piston rod 33 and atitselower end is'pivota ly connected to a tension rod'v37 "which, extends rearwardly and isjconnectedtoaJ transverse plate'38.

'Short rods39 and 40 are pivotally connected at one end to the opposite ends' of the plate ,43 and 44which are pivotally connectedto.

thelower ends of Abrake hangers 45 .pivoted on the. side frame membersll. Shoes 46 are pivotally carried intermediate the ends 'of brake hangers 45A and engage the treads,

of the `wheel 14;

Each-live lever 36 conneetedto ,a'deady `lever 47 by `a compression bar 48 which joins the upper endsof vthe vertical live and dead levers' and extends horizontally :just lmderneath the jack shaft 21 and it is therefore substantially 4in line with the lontudinal center line of the draft rigging. ear its center the 'deadflever 47 is'plvoted in across head 49 which works .in a guidewayl Withinv the tubular4 lmember 34. The cross head49 hasa screw 50 connected therevto and a ratchet wheel51^fis rotatably mounted in' a. continuation 52 ofthe tubular -part and has threaded 'engagement with the screw 50. The lcrosshead49, screw 50' and ratchet wheel 51 constitutelpartsof the slack adjuster.V Whenfthe piston v32 in the brake' cylinder 31 moves more than` a predetermined distance, say 6y inches, it uncoversa port leaving air pass through the pipe 53 to the cylin er of the-slack adjuster causing the downward movement of the piston 54 which has -a pawl 55 pivoted to the lower -end of astem 56 yon the piston` 54.- A down- Ward movement of the piston 54 moves the lpawl 55over the teeth of the ratchet wheel 51 and when the' air pressure behind the iston 54'is `removed a spring 57 surrounding the stem 56 restores the piston 54 to its initial position, the pawl 55 simultaneously v rotating the'ratchet wheel 51 which causes the adjustment of the screw 50 and the consequent adjustment of the lever 47 and bar 48 which connects it to the lever 36. The weer of the shoes and other parts of the brake mechanism is thus taken up automatically. The outer end of the guiding part 34 of the slack adjuster is supported from the side frame members 11.

A tension rod 58 is pivotally connected to the lower end of the dead lever 47 and to a plate 59. Short rods 60 and 61 are connected to the opposite ends of the late 59 orizon tally disposed levers 62 and 63 respectively. At their outer ends the levers 62 and 63 have short links 64 and 65 connected thereto whereby they are connected to the lower` endsy of the brake'hangers66 pivotally supported bythe side frame members 11. Intermediate their ends the-brakehangers 66 pivotally'support brake shoes 67 which bear against the treadsof the whecls13.

The arrangement of the brake rigging from the live lever 36 outwardly isf'the same as the arrangement of the brake rigging from the dea'd lever 47 outwardly and as ,I have only illustrated the latter completely it will be understood that the description and illustration will be the same for both. i AThe'first horizontally disposed levers 62 and 63 are connected to a second pair of horizontally .disposed levers 68 and 69 by 'means of rods -7 O and 71 which are pivotally Athereto and capable of engaging the tread of the wheel 13 on the side opposite the axle 15 from the shoe 67, whereby each of the driver wheels of the locomotive is equipped with a clasp brake.

The adjustable links 76 and 77 pivotally connect the inner ends of the horizontal levers 68 and 78 and the inner ends of the horizontal levers 69 and 79. The third pair of horizontal levers 78, 79 is connected to the lower ends of the brake hangers 80 mounted on the pony truck frame 81. Intermediate their ends the hangers v80 are provided with pivotally mounted shoes 82 which are capable of engaging the treads of the pony truck wheels 19. Intermediate their ends the horizontal levers 78 and 79 are pivotally connected to rods 83 and 84, respectively, which are anchored to the pony truck frame 81. The construction of the pony truck frame 81 and the manner of supporting. the brake hangers thereon is shown and de scribed in my co-pending application Serial No. 857,719. The weight on each pony truck wheel is substantially halfthaton each driver wheel and therefore there will be about the same intensity of pressure on each brake shoe according to the arrangement herein provided. Means for the adjustment of all the tension rods has been provided in order to avoid excessive anguarity of the various levers.

On account'of the limited s ace ithas been necessary to locate both t e live and dead levers on the same side of the brake cylinder, the levers being hung in a frame which at one endis attached to one cylinder head and at the other end being supported by the side. frame members through the motor frame casting. This arrangement lll) incassa.

permits locating the connection 48 between of horizontal brake levers on either side of the cylinder through .the equalizing mem.

bers 38 and 59, thuspass immediately underneath the cylinders and have at the same time suliici'ent clearance between the cylin- A dersand the tops'of the rails.

The operation of the brake rigging will be apparent from the foregoing description. The brake cylinder .31 being positioned'substantially mid-way between the ends of the brake system,` when operated, will cause the brakeshoes on both ends of the brake system to be drawn up to the wheels inunison. .The automatic slack adjuster operates to take up the yslack ofithe brake and the novel lever arrangement in connection therewith serves to permit the use of the adjuster in the limited space under \the motors.

Having thus described the inventionA what I claim` and desire' to secure by Letters Patent is:

1. In a locomotive, the combination of axles, driver wheels on each of said axles, a

.driving motor and gearing in the space be-` tween said axles, brake devices capable of engaging said wheels on opposite sides of said axles, 'and a brake cylinder between said axles beneath said motor and connected with said brake devices. v

2. In a locomotive, the combination of axles., driver wheels on` each yof said axles, driving motors in the space between said j axles, means including gearing connecting said motors to the driver wheels, brake hangers on opposite sides of said wheels, brake ,shoes carried by said hangers and capable of engaging the wheels on opposite sides of their centers, a brake cylinder in the space between said axles and below said motors, a piston therefor, and `means connecting said .piston with said brake hangers,

said means being located on oneside of the` cylinder.

3. In a locomotive, the combination of axles, driver Awheels on each of said axles.'

driving mechanismA located between said axles, brake hangers on opposite sidesof each of said wheels, brake shoes carried by said hangers and capable of engaging said wheels, a horizontal lever connected to each of said brake hangers, a cylinder located be- 'l tween said axles and below said driving mechanism, a piston working in said cylinder and means connecting said piston with each of said horizontal levers.

4. In a locomotive, the combination of axles, driver wheels on each of said axles, `dr1v1ng mechanism located` between said axles and connected to said wheels, braking means for said wheels comprising a brake cylinder located below said driving mechamism, and means below said driving mecharality of horizontally disposed brake levers,

one foreach brake hanger, a brake cylinder located between the axles, a piston working in saidcylinder, a live brake lever connected to said piston and to the group of horizontal llevers on one side of said cylinder, and a dead brake lever connected to said live brake lever and to the group of horizontal levers on the other side' of said cylinder.

6; In a locomotive, the combination of axles, driver wheels mounted thereon, a pair of brake hangers associated with each wheel, a brake shoe carried by each hanger and capable of engaging a driver wheel, a plurality of horizontally disposed brake levers, one for each brake hanger, a brake cylinder located between the axles, a piston working in said cylinder, a live brake lever connected to `said piston and to the group of horizontal levers on one side of -said cylinder, and a dead brake lever connectedto said live brake lever and -to the group of horizontal levers on the other side of said cylinder, said live and dead leversV being located on the same side of.l the brake cylinder.

7. In a "locomotive, the combination of axles, driver wheels mounted on said axles, pony truck wheels located beyond Saiddriver wheels, a brake hanger located on each side of said driver wheels, and a brake hanger in line with each pony truck wheel, a brake shoe on each hanger, two brake shoes being capable of engaging each of said driver wheels, and one brake shoe being capable of engaging each of said pony truck wheels, a brake operating device, and levers connecting said device to all the brake hangers whereby said device is capable of operating the brake shoes associated with the driver wheels and pony truck wheels.

82 In a locomotive, the combination of driver axles, driver wheels mounted on each of said axles, a pony truck axle located beyond each driver axle, pony truck wheels on said pony truck axles, a brake cylinder located between the driver axles, a brake lever associated with each of said wheels, and means connecting the brake levers to the piston working in said brake cylinder.

9. In a locomotive, the combination of` 'brake operating means, levers connecting said means to said brake shoes, the arrangement bein v such that the brakeeort exerted on each w eel is proportional to thereon.`

10. vIn a locomotive, the combination of -a pluralit of axles Wheels fixed on said axles, and bra emeanstherefor comprising a brake the weight cylinder, a piston working in said cylinder, a brake lever connected intermediate its ends with said piston,va second brake lever, slack adjusting means connected to saidsecond brake lever, and a rod connecting said levers.

11. In a locomotive, the combination of a' plurality .of driver wheels, a plurality of pon truck wheels, and brake rigging for sai locomotive and the wheels thereof comprising devices arranged so that the brakin effort exerted on' each wheel 'is proportiona to theweight thereon and so that the braking effort exerted on the 'driver wheels 'will be in excess of that exerted on the pony truck wheels.

12. In an electric locomotive, the co'mbina-v g tion of a truck, axles mounted therein,` pairs of driver wheels'on said axles, electric driv-' ing mechanism connected to said wheels,

draft rigging connected to the truck,and

brake rigging for said truckcomprising r1- mary brake levers located beneath said e ectric drivin mechanism below a center line In a locomotive .thecombination of a truckframe, a plurality of axles mounted therein, d river'wheels mounted on'said axles, motors -mounted-on said frame, draftv .rig-v ging connected 'to said frame, a jack shaft located substantially in Vline with ay center line through said draitt` rigging, means connecting ,said'jack shaft and motors, means ,connecting saidl jack shait and driver wheels, and brake rigging comprising a live brake lever, a dead brake'lever, a brake cylinder, a piston working therein, and means connecting said brake levers to the piston, said levers, cylinder, piston and connections being located beneath the jack-shaft.

15. In a railway vehicle, the combination of axles,lpairs offwheels on said axles, brakingf'means associated with-said wheels and including a brake cylinder, and live and 'deadv levers located on the same side of said cylinder and having parts intermediate their ends pivotally mounted in the axis of said cylinder.

416. In an electric locomotive, the combination withv driver and pony truekdaxles, of wheels mounted'on said axles, electric drivin wheels, a' brake operating device below said electric driving mechanism, and levers con.,- necting said'de'vice to all of the brake shoes wherebv said device is capable of operatinf thlebalre shoes on the driver and pony truc w ee s.

In testimony whereof Ilaix my signature mechanism .in `the space between said4 driver-axles, a brake shoe for each of said 

